Case U; Removing The "Case U" Block - Citizen CL-S6621 Technical Manual

Disassembly, Reassembly and Lubrication

3-6-3. Case U

(1) Removing the "Case U" Block

1. Remove the "Cover Top" Block. Refer to
2. Remove the "Unit, Ribbon". Refer to
3. Remove the 1 screw (BH, M3x4 (NI)) and detach the "Cover Cable".
4. When an optional peeler or cutter is installed, remove the 1 screw (PHT (PT2T), M3x14)
and detach the "Cover Connector".
5. Open the Head Block by pressing the "Lever Head Lock".
NOTE: This step is required as the "Knob Guide Paper U" extends beyond the "Case U"
Block.
6. Lift the "Case U" Block to the half-way height, and while lowering the Head Block a little,
remove the "Case U" upwardly.
NOTE: As the front edge of the "Case U" Block is directly beneath the stopper part" (5
pcs.) of the "Leaf Case U", avoid these stopper part when lifting the "Case U"
Block".
7. After removing the "Case U" Block, detach the "Leaf Case U" upwardly
PHT (PT2T), M3x14
BH, M3x4 (NI)
Cover Cable
Cover Cable
Hook
CL-S6621
Cover Connector
Head Block
"3-6-1(1) Removing the "Cover Top"
"3-6-2 Unit, Ribbon".
Stopper part (5 pcs.)
Lever Head Lock
3-14
Block".
Leaf Case U
PHT (PT2T), M3x14
"Case U" Block
Knob Guide Paper U